Related question....I have a couple of mangrove pods in my tank as well, I've had them for about 2 weeks and they havent looked so hot. I just got my MH 20k running this past Sunday, so I'm wondering if the MH is a good light for the Mangroves, should they start to grow better now? Also, I don't know if it matters but I dont have the roots buried in the sand because my tank is so deep, the pods would be completly under water, so i just have them wedged between some rocks....and suggestions?